118388 has 12 divisors (see below), whose sum is σ = 219492. Its totient is φ = 55680.

The previous prime is 118387. The next prime is 118399. The reversal of 118388 is 883811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 85264 = 182^2 + 292^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (18291).

2¹¹⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

118388 is a deficient number, since it is larger than the sum of its proper divisors (101104).

118388 is a wasteful number, since it uses less digits than its factorization.

118388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762 (or 1760 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 118388 is about 344.0755730941. The cubic root of 118388 is about 49.1023820713.

The spelling of 118388 in words is "one hundred eighteen thousand, three hundred eighty-eight".